javax.swing.text
public abstract static class GlyphView.GlyphPainter extends Object
GlyphView.
| Constructor Summary | |
|---|---|
| GlyphPainter()
Creates a new GlyphPainer. | |
| Method Summary | |
|---|---|
| abstract float | getAscent(GlyphView v)
Returns the ascent of the font that is used by this glyph painter.
|
| abstract int | getBoundedPosition(GlyphView v, int p0, float x, float len)
Determines the model offset, so that the text between p0
and this offset fits within the span starting at x with
the length of len.
|
| abstract float | getDescent(GlyphView v)
Returns the descent of the font that is used by this glyph painter.
|
| abstract float | getHeight(GlyphView view)
Returns the full height of the rendered text.
|
| int | getNextVisualPositionFrom(GlyphView v, int pos, Position.Bias b, Shape a, int direction, Position.Bias[] biasRet)
Returns the model location that should be used to place a caret when
moving the caret through the document.
|
| GlyphView.GlyphPainter | getPainter(GlyphView v, int p0, int p1)
Returns a painter that can be used to render the specified glyph view.
|
| abstract float | getSpan(GlyphView view, int p0, int p1, TabExpander te, float x)
Determine the span of the glyphs from location p0 to
location p1. |
| abstract Shape | modelToView(GlyphView view, int pos, Position.Bias b, Shape a)
Maps a position in the document into the coordinate space of the View.
|
| abstract void | paint(GlyphView view, Graphics g, Shape a, int p0, int p1)
Paints the glyphs.
|
| abstract int | viewToModel(GlyphView v, float x, float y, Shape a, Position.Bias[] biasRet)
Maps a visual position into a document location.
|
GlyphPainer.Parameters: v the glyph view
Returns: the ascent of the font that is used by this glyph painter
p0
and this offset fits within the span starting at x with
the length of len.
Parameters: v the glyph view p0 the starting offset in the model x the start location in the view len the length of the span in the view
Parameters: v the glyph view
Returns: the descent of the font that is used by this glyph painter
Returns: the full height of the rendered text
Parameters: v the glyph view pos the current model location b the bias for p a the allocated region for the glyph view direction the direction from the current position; Must be one of
{@link SwingConstants#EAST}, {@link SwingConstants#WEST},
{@link SwingConstants#NORTH} or {@link SwingConstants#SOUTH} biasRet filled with the bias of the resulting location when method
returns
Returns: the location within the document that should be used to place the caret when moving the caret around the document
Throws: BadLocationException if pos is an invalid model
location IllegalArgumentException if d is invalid
Parameters: v the glyph view for which to create a painter p0 the start offset of the rendered area p1 the end offset of the rendered area
Returns: a painter that can be used to render the specified glyph view
p0 to
location p1. If te is not null,
then TABs are expanded using this TabExpander.
The parameter x is the location at which the view is
located (this is important when using TAB expansion).
Parameters: view the glyph view p0 the starting location in the document model p1 the end location in the document model te the tab expander to use x the location at which the view is located
Returns: the span of the glyphs from location p0 to
location p1, possibly using TAB expansion
Parameters: view the glyph view pos the position of the character in the model a the area that is occupied by the view b either {@link Position.Bias#Forward} or
{@link Position.Bias#Backward} depending on the preferred
direction bias. If null this defaults to
Position.Bias.Forward
Returns: a rectangle that gives the location of the document position inside the view coordinate space
Throws: BadLocationException if pos is invalid IllegalArgumentException if b is not one of the above listed
valid values
Parameters: view the glyph view to paint g the graphics context to use for painting a the allocation of the glyph view p0 the start position (in the model) from which to paint p1 the end position (in the model) to which to paint
Parameters: v the glyph view x the X coordinate of the visual position y the Y coordinate of the visual position a the allocated region biasRet filled with the bias of the model location on method exit
Returns: the model location that represents the specified view location